com.saxonica.schema

## Class SequenceModelGroup

- java.lang.Object
- - com.saxonica.schema.SchemaStructure
  - - com.saxonica.schema.ModelGroup
    - - com.saxonica.schema.SequenceModelGroup

- All Implemented Interfaces:
    Term, UserSchemaComponent, Serializable, SourceLocator, SchemaComponent

      public class SequenceModelGroup
      extends ModelGroup

  A SequenceCompositor represents an xs:sequence element in the schema
  See Also:
    Serialized Form

- - ### Field Summary

    - ### Fields inherited from class com.saxonica.schema.ModelGroup

      `contentModel, simplifiedContentModel`

    - ### Fields inherited from interface net.sf.saxon.type.SchemaComponent

      `COMPONENT_FUNCTION_TYPE, FIXED_UP, INCOMPLETE, INVALID, UNVALIDATED, VALIDATED, VALIDATING`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SequenceModelGroup()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getCompositorName()` Get the name of this compositor
    `boolean` | `isEmptiable()` Determine if empty content is allowed
    `boolean` | `isPointless(ModelGroup container)` Test whether the compositor is pointless, as described in XML Schema Part 1 Schema Component Constraint: Particle Valid (Restriction)
    `boolean` | `validate(SchemaCompiler compiler)` Checks the validity of this Compositor definition.

    - ### Methods inherited from class com.saxonica.schema.ModelGroup

      `addParticle, checkElements, compile, containsAll, containsElementWildcard, fixup, gatherAllPermittedElements, getComponentAsFunction, getContentModelSize, getElementParticleCardinality, getElementParticleType, getParticles, getSimplifiedContentModel, getTerm, isEmpty, lookForCycles, markVulnerableSubParticles, serialize, setContentModel`

    - ### Methods inherited from class com.saxonica.schema.SchemaStructure

      `elaborate, getColumnNumber, getConfiguration, getFixupStatus, getLineNumber, getPublicId, getRedefinitionLevel, getSchemaDocumentURI, getSystemId, getValidationStatus, makeXPathExpressionPropertyRecord, setConfiguration, setFixupStatus, setLineNumber, setLocator, setRedefinitionLevel, setSchemaDocumentURI, setSystemId, setValidationStatus`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface com.saxonica.schema.UserSchemaComponent

      `elaborate`

    - ### Methods inherited from interface net.sf.saxon.type.SchemaComponent

      `getRedefinitionLevel, getValidationStatus`

- - ### Constructor Detail

    - #### SequenceModelGroup

          public SequenceModelGroup()

  - ### Method Detail

    - #### isEmptiable

          public boolean isEmptiable()
                              throws UnresolvedReferenceException

      Determine if empty content is allowed
      Specified by:
        `isEmptiable` in class `ModelGroup`
      Returns:
        true if the content model of the model group allows empty content
      Throws:
        `UnresolvedReferenceException` - if the schema contains unresolved references to required components

    - #### isPointless

          public boolean isPointless(ModelGroup container)

      Test whether the compositor is pointless, as described in XML Schema Part 1 Schema Component Constraint: Particle Valid (Restriction)
      Overrides:
        `isPointless` in class `ModelGroup`
      Parameters:
        `container` - not used
      Returns:
        true if the particle is pointless (which effectively means it can't match anything)

    - #### validate

          public boolean validate(SchemaCompiler compiler)
                           throws SchemaException

      Checks the validity of this Compositor definition.
      Specified by:
        `validate` in interface `UserSchemaComponent`
      Overrides:
        `validate` in class `ModelGroup`
      Returns:
        true when this Schema definition is valid, otherwise false.
      Throws:
        `SchemaException` - when the error listener decides an error is fatal

    - #### getCompositorName

          public String getCompositorName()

      Get the name of this compositor
      Specified by:
        `getCompositorName` in class `ModelGroup`
      Returns:
        one of "sequence", "choice", or "all"

Copyright (c) 2004-2013 Saxonica Limited. All rights reserved.